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15. Adjustment of the Stop-Finger
Tools required: (2.5 mm handle hex tool)
Check: The engagement of the stop-nger and
throat of the bobbin case support basket must have
a clearance of 0.8 mm to 1.0 mm (Figure 14.2). This
clearance ensures that adequate space exists for
thread escapement during the sewing process.
Note: If set with too much needle clearance, the
basket will be noisy and can also more easily slip out
of adjustment. If set too ght, the thread will get
stuck around the stop-nger and may jam
the machine.
If an adjustment is necessary:
• Loosen screw A (Figure 15.1) and adjust the stop-
nger so the proper clearance is achieved as shown
in Figure 15.2.
• Important: Ensure that the stop-nger stays up ght
against the machined edge at the le of the stop-
nger as shown in Figure 15.1.
Note: This view is from the under side looking up, not
from the top side looking down.
• The machined edge helps support the stop-nger
from twisng to the side, allowing the basket to spin
out of posion, be hit by the needle and damaged.
• Tighten screw A.
Figure 15.1
Machined edge
Screw A
Figure 15.2
0.8 mm to 1.0 mm
Figure 15.3
Stop-nger cutout
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